This article reports the results of evaluation of the quality of life in patients with chronic obstructive pulmonary disease (COPD) and its combination with coronary heart disease (CHD) or essential hypertension (HD) based on the SF-36 questionnaire designed for the non-specific assessment of the patient's quality of life and widely used in clinical studies to characterize theirgeneral well-being and the degree of satisfaction with those aspects of human activity that affect health. SF-36 consists of 36 questions, grouped into eight scales: physical functioning, role-playing activity, bodily pain, general health, vitality, social functioning, emotional well-being and mental health. The scales are combined in such a way that the higher the value (from 0 to 100) the better results of evaluation based on a given scale. They were used to derive two parameters characterizing psychological and physical components of health.